130 lines
3.9 KiB
Python
130 lines
3.9 KiB
Python
from typing import Optional, List
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from dataclasses import dataclass, field
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import gphoto2 as gp
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import cv2
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import numpy as np
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from .base_camera import BaseCamera
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camera_widget_types = {
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gp.GP_WIDGET_WINDOW: "GP_WIDGET_WINDOW", # type: ignore
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gp.GP_WIDGET_SECTION: "GP_WIDGET_SECTION", # type: ignore
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gp.GP_WIDGET_TEXT: "GP_WIDGET_TEXT", # type: ignore
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gp.GP_WIDGET_RANGE: "GP_WIDGET_RANGE", # type: ignore
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gp.GP_WIDGET_TOGGLE: "GP_WIDGET_TOGGLE", # type: ignore
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gp.GP_WIDGET_RADIO: "GP_WIDGET_RADIO", # type: ignore
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gp.GP_WIDGET_MENU: "GP_WIDGET_MENU", # type: ignore
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gp.GP_WIDGET_BUTTON: "GP_WIDGET_BUTTON", # type: ignore
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gp.GP_WIDGET_DATE: "GP_WIDGET_DATE", # type: ignore
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}
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class GPhotoCamera(BaseCamera):
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def __init__(self) -> None:
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super().__init__()
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self.camera = None
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self.configs: List[dict] = []
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def connect(self) -> bool:
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self.error_msg = None
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try:
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self.camera = gp.Camera() # type: ignore
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self.camera.init()
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config = self.camera.get_config()
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self.read_config(config)
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for config in self.configs:
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print(config)
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config_iso = self.get_config_by_name("iso")
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self.set_config_by_id(config_iso['id'], "400")
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self.set_config_by_id(config_iso['id'], "100")
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self.set_config_by_id(config_iso['id'], "1600")
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return True
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except Exception as e:
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self.error_msg = f"[GPHOTO2] {e}"
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self.camera = None
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return False
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def disconnect(self) -> None:
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if self.camera:
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self.camera.exit()
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self.camera = None
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self.configs.clear()
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def get_frame(self):
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self.error_msg = None
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if self.camera is None:
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self.error_msg = "[GPHOTO2] Camera is not initialized."
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return (False, None)
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try:
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file = self.camera.capture_preview() # type: ignore
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data = file.get_data_and_size()
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frame = np.frombuffer(data, dtype=np.uint8)
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frame = cv2.imdecode(frame, cv2.IMREAD_COLOR)
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return (True, frame)
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except Exception as e:
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self.error_msg = f"[GPHOTO2] {e}"
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return (False, None)
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def get_config_by_id(self, id: int):
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return next(w for w in self.configs if w['id'] == id)
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def get_config_by_name(self, name: str):
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return next(w for w in self.configs if w['name'] == name)
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def set_config(self, config, value):
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if value not in config['choices']:
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return
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config['config'].set_value(value) # type: ignore
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if self._save_config(config):
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config['value'] = value
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def set_config_by_id(self, id: int, value: str):
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config = self.get_config_by_id(id)
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self.set_config(config, value)
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def set_config_by_name(self, name: str, value: str):
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config = self.get_config_by_name(name)
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self.set_config(config, value)
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def _save_config(self, config):
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if not self.camera:
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return False
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self.camera.set_single.config(config['name'], config['widget'])
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return True
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def parse_config(self, config):
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new_config = {
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"id": config.get_id(),
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"name": config.get_name(),
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"label": config.get_label(),
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"type": camera_widget_types[config.get_type()],
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"widget": config
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}
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try:
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new_config["value"] = config.get_value()
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except gp.GPhoto2Error:
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pass
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try:
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new_config["choices"] = list(config.get_choices())
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except gp.GPhoto2Error:
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pass
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return new_config
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def read_config(self, config):
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self.configs.append(self.parse_config(config))
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for i in range(config.count_children()):
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child = config.get_child(i)
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self.read_config(child)
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